Power-driven reciprocating cutter



June 17, 1947.

A. L. CANDLAND POWER DRIVEN RECIPROCATING CUTTER Filed May 8, 1945 2SheetS -Sheet l 7 m m I June 1947. A. L. CANDLAND POWER DRIVENRECIPROCATING CUTTER Filed May 8, 1945 2 Sheets-Sheet 2 iindviahvPatented June 17, I947 UNITED STATES PATENT OFFICE 2,422,221PGWER-DRIVEN RECIPROCATING CUTTER Authnal L. Candland, Vista, Calif.Application May 8, 1945, Serial No. 592,633 6 Claims. (81. 30-272) 2This invention relates to a power-driven recip- Figure 6 is a sectionalview taken substantially rocating cutter, and more particularly to sucha along the line 6-4: of Figure 5. device adapted for the use ofbutchers or similar Figure 7 is an end view of the constructiondisindividuals engaged in the cutting of meat. closed in Figure 2, thecover plate being removed,

A primary object of this invention is the proviand certain portionsthereof being indicated in sion of an improved cutting blade, one edgeof section.

which has saw teeth, flexibly mounted and adapt- Figure 8 is an enlargedplan view of a construced to be driven by a flexible cable to impart aretional detail.

ciprocatory motion to the blade for severing cuts Similar referencecharacters refer to similar of meat, and sawing through the bonethereof. 10 Parts throughout the-several views of the draw- Anadditional object of the invention is the pronesvision of such a devicewherein the actual cut- Having now particular reference to Figu e tingimplement approximates in size and. configuthere is generally indicatedat ID a butchers block ration a conventional butcher knife, and which ofany desired conventional type to which is semay be readily handled andoperated by either cured, as by means of clips ii, an upright I2, rightor left handed persons. terminating in an arm l3 extending over theblock whereby the saw and its associated motor may be sired conventionaltype. An electric cord I6 leads readily earned from place to place asdesired, from the motor housing l5 through the interior Still anotherobject of the invention is the pro- 0f t pp t I? a t at in a p u visionof such a device characterized by means Which y be plugged O a y desiredSource Of whereby the blade may be readily and quickly current.

replaced as may be necessary. 5 The motor housing I 5 terminates in anen- A still further object is the provision of such lar d p ion 8 havinga recess I9 therein bl d operate, 39 including an eccentrically set pin23 and a counout hereinafter and disclosed in the accompanyhe Oppositeend of whlch 1S p a y ed s mg drawings, wherein there is shown apreferred y a D V t 27 o an extremity 28 of a flexible shaft embodimentof this inventive concep which extends through a fieXlble cOhdult 30 Int drawings: to the handle, generally indicated at 3| of the Figure 1 isa side elevational view of one form D n w mechanisme lower p of deviceembodying the instant invention show- 151011 of the extending portion I3i p o i d W th jng the motor and support for the game in as a threadednipple 32 {70 Which the conduit 30 is ciation with a butohers block.adapted to be secured, as by means of a threaded Figure 21 an enlargedfragmentary detail View, collar 33 An electric cord 34 extends from thecertain parts thereof being broken away dismotor housing I5 130 the h d3| a m y e closing the connection of the motor mechanism s cu d t th cnduit h us n as y a s f with the flexible drive shaft. c ips Figure 3 isa, top plan View of the saw meeha- From the foregoing, it will now beseen that nism, certain concealed portions thereof being When iIhe meteris n ed in a ma er to be indicat d i dott d li described hereinafter,rotation of the drive shaft Figure 4 is an end elevational iew of themeeh- 2| is translated through the eccentric member anism disclosed inFigure 3, as viewed from the 22 to reciprocatory mo n the extremity 28left, the connection to the flexible shaft being of the flexible shaft29, and hence to the shaft. omitted. Referring now particularly to thehandle 31, Figure 5 is a sectional view taken substantially 7 it will beseen that the same is of substantially along the line 55 of Figure 3, asviewed in the the configuration of a normal knife handle and directionindicated by the arrows. 6. terminates at one extremitv in a Mme-l.

3 36 adapted to threadedly engage a collar 31 33, to the extremity ofThe fiexible shaft 28 ex- 39 into a recess and is se- 'ple secured, asby a flange the flexible conduit 30. tends through a suitable bore 53 inthe interior of the handle 3i, cured, as by suitable threading or thelike, to a rigid member M bifurcated, as at 42 (see Fig. 8), andpivotally secured to a reciprocating block 43 provided with rollers 4dwhich engage in suitable channels 55 formed within the recess it. Theblock d3 has pivotally mounted thereon, as by a pivot $6, an elongatedmember 4i adapted to be passed. through a corresponding elongated slotQB in the extremity 49 of a blade generally indicated at 59. Thus, itWill be seen that reciprocation of the flexible shaft 29 is in turnimparted to the blade The blade 59 is provided on one surface with a sawedge 5i, the teeth of which are inclined toward the handle 3| in suchmanner as to impart a drag action when the blade is reciprocated. Theopposite edge of blade 553 is provided with a, knife edge 52 whichterminates in an arcuate extremity '53 to provide a close cuttingsurface adjacent the blade 5|. As best shown in Figure 3, one side ofthe aperture is closed as by a removable plate 54 pivotally mounted, asat 55, on the handle Si in such manner that ready access may be had tothe member s! to permit replacement of the blade as may be necessary ordesirable.

The electrical connection as terminates in a switch mechanism 56 of anydesired conventional construction, which is engaged, as by a lever 51,with a conventional switch button 58 of any desired type, wherebythemotor may or off from a convenient point to reciprocate the blade 50when desired.

From the foregoing, itwill now be seen that there is herein provided animproved power saw adapted particularly for'butchers use, wherein thesaw blade may be reciprocated to sever the bones of the meat, andwherein the blade may be reciprocated if desired to sever the meat,which may be readily supported adjacent the butchers block, and which,with its associated motor housing, may be readily removed therefrom whenit is desired to cut or carve meat at a location remote from thebutchers block, as for example, within the refrigerator.

It will also be seen that the device hereinbefc-re shown and describedaccomplishes all the objects of this invention and others, includingmany ad vantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as manymodifications may be made in the embodiment hereinbefore shown anddescribed, it is to be understood that all matter herein is to beinterpreted merely as illustrative and not in a limiting sense. 7

I claim:

1. Apower driven cutting tool including a hollow handle of square crosssection, upper and lower guide channels in said handle disposed to oneside of the vertical, longtudinal median plane of, said handle, a blockslidably supported in said guide channels, detachably securing said saidhandle having a slot at one said blade being. reciprocable through saidslot, a flexible ,reciprocable cable extending into the other end ofsaid handle and pivotal means connecting said c ble to said block. 7 V

2. A power driven cutting tool including a holw flnsne cross section,upper and be cut on lower guide channels in said handle disposed to oneside of the vertical, longitudinal median plane of said handle, a blockslidably supported in said guide channels, a cutting blade, meansdetachably securing said blade to one side of said block, said handlehaving a slot at one end thereof, said blade being reciprocable throughsaid slot, a flexible reciprocable cable extending into the other end.of said handle and pivotal means connecting said cable to said block,the side of said handle adjacent said blade being pivoted to said handleat one end thereof, to form a closure member for the interior of saidhandle.

3. A power driven cutting tool including a hollow upper and lower guidechannels in said handle disposed to one side of the verticle, of saidhandle, a block slidably supported in said guide'channels, a cuttingblade, means detachably securing said blade to one side of said block,said handle having a slot at one end thereof, said blade beingreciprocable through said'slot, a flexible reciprocable cable extendinginto the other end of said handle and pivotal means connecting saidcable to said block, the side of said handle adjacent said blade beingpivoted to said handle at one end thereof, toform a closure member forthe interior of said handle, said blade being secured to a slide of theblock, said side of the block being adjacent to said closure member.

l. A power driven cutting tool including a hollow handle of square crosssection, upper an lower guide channels in said handle disposed to oneside of the vertical, longitudinal median plane of said handle, a blockslidably supported in said guide channels, a cutting blade, meansdetachably securing said blade to one side of said block, said handlehaving a slot at one end thereof, said bladewbeing reciprocable throughsaid slot, a flexible reciprocable cable extending into the other end ofsaid handle, pivotal means connecting said cable to said block, saidblock comprising and lower edges received in said guide channels, androllers on said edges bearing in nels.

5. A power driven cutting tool including a hol low handle of squarecross section, upper and lower guide channels in said handle disposed toone side of the vertical, longitudinal median plane of said handle, ablock slidably supported in said guide channels, a cutting blade,' meansdetachably securing said blade said block, said handle having a slotthereof, said blade being reciproca le through said slot, a flexiblereciprocable cable extending into the other end of said handle, andpivotal means connecting said cable to said block, said pivotal meansincluding a member attached to said cable at one end, the other end ofsaid mem- 60 her bifurcated, said block being pivoted in saidbifurcation. V I

6. A power driven cutting tool including a hollow handle of square crosssection, upper and lower guide channels in said: handle disposed to oneside of the vertical,

longitudinal median plane of said handle, a block slidably supported insaid guide channels, a cutting blade, means detachably securing saidblade to one side of said block, said handle having a slot at one endthereof, said blade being reciprocable through said slot, a flexiblereciprocable cable extending i into the other end of said handle, andpivotal T means connecting said cable to said block, said pivotal'meansincluding a member attached to said cable at one end, the other endofsaid' mem her being bifurcated, said block being pivoted in saidbifurcation, said other end of said member dle.

AUTHNAL L. CANDLAND.

REFERENCES CITED The following references are of record in the file ofthis patent:

